Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 941-784-2 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.3 (Algal Inhibition test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Identification Code: FAT 21030/D
Batch No.: 16.36
Appearance: black solid
Purity: 67% AS
Solubility (in water): 80 g/L
Received: 05/11/93
Storage: room temperature
Stability: 00/12/98 - Analytical monitoring:
- yes
- Details on sampling:
- Sampling for analysis:
Composite samples of each test concentration were drawn by mixing identical volumes of the test solutions taken from the approximate center of the test vessels. They were taken immediately before exposure and after 72 hours exposure and kept at -18 to -22 °C until analysis. - Vehicle:
- no
- Details on test solutions:
- Stock solution: 50.4 mg test substance were mixed and made up to 1000 mL with water.
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
- Details on test organisms:
- - Strain: Green algae (Scenedesmus subspicatus)
- Origin: Collection of algae cultures, Pflanzenphysiologisches Institut, University, Nikolausberger Weg 18, D-3400 Göttingen, Germany
- Initial cell desity: 11000 cells/mL
- Preculture: 3 days under test conditions - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 72 h
- Hardness:
- none
- Test temperature:
- 23 +/- 1 °C
- pH:
- 7.8-8.2
- Nominal and measured concentrations:
- Nominal: 2, 4.4, 9.6, 21 and 46 mg/L
Measured start: 2, 4.4, 9.8, 21.6 and 47.6 mg/L
Measured end: 1.6, 3.0 5.1, 12.3 and 30.9 mg/L - Details on test conditions:
- - Vessels 100 ml Erlenmeyer flasks, stoppered with aluminium caps, on Lab-shaker, 50 ml test solution per flask.
- Temperature 23 +/- 1 °C
- Lighting: Continuous illumination, cold white fluorescent light, ca. 8000 lux. - Reference substance (positive control):
- no
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 9.6 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Remarks on result:
- other: 7.1-12.8mg/l
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 5.1 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The 72h EC50 (growth rate) was found to be 9.6 mg/L. NOEC (growth rate) was found to be 5.1 mg/L.
- Executive summary:
A study was performed to determine the toxicity of the test substance (FAT 21030/D) on algae (Scenedesmus subspicatus) according to Guideline 92/69/EEC C.3 (GLP). The duration of the experiment was 72 hours.
The test was done at following concentrations:
Nominal: 2, 4.4, 9.6, 21 and 46 mg/L
Measured start: 2, 4.4, 9.8, 21.6 and 47.6 mg/L
Results: In conclusion, the 72-hour EC50 (growth rate) was found to be 9.6 mg/L. NOEC (growth rate) was found to be 5.1 mg/L.
Reference
Results of analytical determination:
Blank (Start) 07.03.94; Content of test article in Daphnia water: <0.8 mg/L
Blank (End) 10.03.94; Content of test article in Daphnia water: <0.8 mg/L
2.0 mg/L (Start) 07.03.94; Content of test article in Daphnia water: 2.0 mg/L
2.0 mg/L (End) 10.03.94; Content of test article in Daphnia water: 1.6 mg/L
4.4 mg/L (Start) 07.03.94; Content of test article in Daphnia water: 4.4 mg/L
4.4 mg/L (End) 10.03.94; Content of test article in Daphnia water: 3.0 mg/L
9.6 mg/L (Start) 07.03.94; Content of test article in Daphnia water: 9.8 mg/L
9.6 mg/L (End) 10.03.94; Content of test article in Daphnia water: 5.1 mg/L
21 mg/L (Start) 07.03.94; Content of test article in Daphnia water: 21.6 mg/L
21 mg/L (End) 10.03.94; Content of test article in Daphnia water: 12.3 mg/L
46 mg/L (Start) 07.03.94; Content of test article in Daphnia water: 47.6 mg/L
46 mg/L (End) 10.03.94; Content of test article in Daphnia water: 30.9 mg/L
Description of key information
A study was performed to determine the toxicity of the test substance (FAT 21030/D) on algae (Scenedesmus subspicatus) according to Guideline 92/69/EEC C.3 (GLP). The duration of the experiment was 72 hours.
The test was done at following concentrations:
Nominal: 2, 4.4, 9.6, 21 and 46 mg/L
Measured start: 2, 4.4, 9.8, 21.6 and 47.6 mg/L
Results: In conclusion, the 72h EC50 (growth rate) was found to be 9.6 mg/L. NOEC (growth rate) was found to be 5.1 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 9.6 mg/L
- EC10 or NOEC for freshwater algae:
- 5.1 mg/L
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.